/Engine/Source/Runtime/Core/Public/Math/SHMath.h
In-place subtraction operator. Changed from (*this = *this - B;} to calculate here to avoid LHS Now this avoidsTSHVector- operator thus LHS on *this as well as Result and
[TSHVector](API\Runtime\Core\Math\TSHVector) & operator-= ( const [TSHVector](API\Runtime\Core\Math\TSHVector) & B )